Answer:
Difference Between the Larger result and smaller result = 100
Explanation:
Given: Kent & Jodi both found sum of 4 digit nos.
Kent made error of adding by 1 in hundreds column
Jodi's result was correct.
To find: Difference between larger result and smaller result.
Since, Kent made adding 1 extra in hundreds column.
So, her answer is greater.
Jodi's answer is correct but it is smaller than Kent's.
Since we know Kent added 1 extra in hundreds column.
So, when we find difference between Kent's result and Jodi's result we get 0 in all columns except hundred's where we get 1.
This implies There is difference of 100 from larger result to smaller result.
To understand, Lets The numbers be 1234 and 5678
Result that Kent get = 1234 +5678 = 7012 ( correct ans = 6912 but she add 1 extra in hundreds place )
Result that Jodi get = 1234 + 5678 = 6912
⇒ Difference = 7012 - 6912 = 100